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How to navigate through the source code by parts in CamelCase (instead of whole words)?
...g CTRL and using left or right arrows Eclipse would navigate over the LongCamelCaseWrittenWord in several steps. One camel case word at time.
...
How to clone a case class instance and change just one field in Scala?
Let's say I have a case class that represents personas, people on different social networks. Instances of that class are fully immutable, and are held in immutable collections, to be eventually modified by an Akka actor.
...
MySQL SELECT WHERE datetime matches day (and not necessarily time)
...e DATE(datecolumns) = '2012-12-24' - it is a performance killer:
it will calculate DATE() for all rows, including those, that don't match
it will make it impossible to use an index for the query
It is much faster to use
SELECT * FROM tablename
WHERE columname BETWEEN '2012-12-25 00:00:00' AND ...
Is there a recommended format for multi-line imports?
... parentheses when importing more than one component and sort them alphabetically. Like so:
from Tkinter import (
Button,
Canvas,
DISABLED,
END,
Entry,
Frame,
LEFT,
NORMAL,
RIDGE,
Text,
Tk,
)
This has the added advantage of easily seeing what components ...
Escape quote in web.config connection string
...
Use " instead of " to escape it.
web.config is an XML file so you should use XML escaping.
connectionString="Server=dbsrv;User ID=myDbUser;Password=somepass"word"
See this forum thread.
Update:
" should work, but as it doesn'...
Eclipse Android and gitignore
What files/folders can I safely ignore for inclusion with git?
6 Answers
6
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What's the difference between lists enclosed by square brackets and parentheses in Python?
...ts are lists while parentheses are tuples.
A list is mutable, meaning you can change its contents:
>>> x = [1,2]
>>> x.append(3)
>>> x
[1, 2, 3]
while tuples are not:
>>> x = (1,2)
>>> x
(1, 2)
>>> x.append(3)
Traceback (most recent call las...
Accidentally committed .idea directory files into git
I have accidentally committed the .idea/ directory into git. This is causing conflicts everywhere else I need to checkout my repo. I was wondering how do I remove these files from the remote?
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Should I be concerned about excess, non-running, Docker containers?
... Dockerfile, creates a container. If the container is no longer running it can still be seen with docker ps -a .
5 Answers...
Why can't I center with margin: 0 auto?
...move the float: left; property, it interferes with display: inline and
* causes problems. (float: left; makes the element implicitly a block-level
* element. It is still good to use display: inline on it to overcome a bug
* in IE6 and below that doubles horizontal margins for floated elements)
...